9-letter words containing h, o, r, a, y
- hyalomere — the transparent part of a blood platelet, surrounding the chromomere.
- hybridoma — a hybrid cell made in the laboratory by fusing a normal cell with a cancer cell, usually a myeloma or lymphoma, in order to combine desired features of each, as the ability of the cancer cell to multiply rapidly with the ability of the normal cell to dictate the production of a specific antibody.
- hydration — any of a class of compounds containing chemically combined water. In the case of some hydrates, as washing soda, Na 2 CO 3 ⋅10H 2 O, the water is loosely held and is easily lost on heating; in others, as sulfuric acid, SO 3 ⋅H 2 O, or H 2 SO 4 , it is strongly held as water of constitution.
- hydrazoic — noting or pertaining to hydrazoic acid; triazoic.
- hydrazone — any of a class of compounds containing the group >C=NNH 2 .
- hydrocast — a process in which water is collected at various depths in a device with bottles clamped together, providing data on differing water characteristics.
- hydrolant — an urgent warning of navigational dangers in the Atlantic Ocean, issued by the U.S. Navy Hydrographic Office.
- hydrolase — an enzyme that catalyzes hydrolysis.
- hydronaut — a person trained to work in deep-sea vessels for research and rescue purposes.
- hydrosoma — hydrosome.
- hydrostat — an electrical device for detecting the presence of water, as from overflow or leakage.
- hydrovane — a vane on a seaplane conferring stability on water (a sponson) or facilitating take off (a hydrofoil)
- hydrozoan — any freshwater or marine coelenterate of the class Hydrozoa, including free-swimming or attached types, as the hydra, in which one developmental stage, either the polyp or medusa, is absent, and colonial types, as the Portuguese man-of-war, in which both medusa and polyp stages are present in a single colony.
- hygrogram — the record made by a hygrograph.
- hygrostat — an instrument for measuring and controlling humidity.
- hyperbola — the set of points in a plane whose distances to two fixed points in the plane have a constant difference; a curve consisting of two distinct and similar branches, formed by the intersection of a plane with a right circular cone when the plane makes a greater angle with the base than does the generator of the cone. Equation: x 2 /a 2 − y 2 /b 2 = ±1.
- hypernova — (astronomy) The gravitational collapse of a massive star to form a black hole.
- hyperopia — a condition of the eye in which parallel rays are focused behind the retina, distant objects being seen more distinctly than near ones; farsightedness (opposed to myopia).
- hyperoxia — (pathology) A condition caused by an excess of oxygen in tissues and organs.
- hypobaric — (of an anesthetic) having a specific gravity lower than that of cerebrospinal fluid. Compare hyperbaric (def 1).
- hypocracy — Misspelling of hypocrisy.
- hypoderma — hypodermis.
- hypophora — (rhetoric) A device in which the author poses a question which is in turn answered.
- hypospray — (science fiction) A kind of jet injector.
- inharmony — Lack of harmony.
- kymograph — an instrument for measuring and graphically recording variations in fluid pressure, as those of the human pulse.
- mayorship — the chief executive official, usually elected, of a city, village, or town.
- myatrophy — myoatrophy.
- myographs — Plural form of myograph.
- myomorpha — A major division of the rodents that includes the rats, mice, voles, hamsters, and their relatives.
- north bay — a city in SE Ontario, in S Canada.
- old harry — Older Use. the devil; Satan.
- oligarchy — a form of government in which all power is vested in a few persons or in a dominant class or clique; government by the few.
- orography — the branch of physical geography dealing with mountains.
- orthogamy — (botany) fertilization of the ovules of a plant by pollen from the same plant.
- overhappy — too happy
- overhasty — excessively hasty; rash: overhasty judgment.
- pharyngo- — pharynx
- phonatory — rapid, periodic opening and closing of the glottis through separation and apposition of the vocal cords that, accompanied by breath under lung pressure, constitutes a source of vocal sound.
- phony war — (in wartime) a period of apparent calm and inactivity, esp the period at the beginning of World War II
- phytosaur — any armored, semiaquatic reptile of the extinct order Phytosauria, of the Mesozoic Era, resembling the crocodile but unrelated, having the nostrils high on the snout and with well-developed hind limbs suggestive of bipedal ancestors.
- polyarchy — a form of government in which power is vested in three or more persons.
- polygraph — an instrument for receiving and recording simultaneously tracings of variations in certain body activities.
- porphyria — a defect of blood pigment metabolism in which porphyrins are produced in excess, are present in the blood, and are found in the urine.
- pothecary — apothecary.
- prognathy — having protrusive jaws; having a gnathic index over 103.
- pyorrhoea — Pathology. a discharge of pus.
- pyothorax — empyema.
- pyrograph — an object ornamented by pyrography.
- scholarly — of, like, or befitting a scholar: scholarly habits.